| 海气热通量算法的改进及应用 |
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| 引用本文： | 张连新,管长龙,黄健.海气热通量算法的改进及应用[J].中国海洋大学学报(自然科学版),2011,41(12):8-16. |
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| 作者姓名： | 张连新 管长龙 黄健 |
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| 作者单位： | 1. 中国海洋大学物理海洋实验室,山东青岛,266100
2. 中国气象局广州热带海洋气象研究所,广东广州,510080 |
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| 基金项目： | 国家自然科学基金项目(40830959、40921004); 国家科技支撑计划项目(2011BAC03B01)资助 |
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| 摘 要： | COARE模型是国际上常用的计算海气热通量的算法,其风速适用范围可达20m/s,但未包含飞沫等高风速下的影响因子,将其直接扩展到20m/s以上风速的海况存在不合理性。本文提出了适合各种风速条件下的包含飞沫影响的海面动力粗糙度长度参数化方案,并利用该方案改进了COARE 3.0模型。利用南海浮标的观测数据,根据改进的COARE 3.0模型计算了海气热通量,分析了飞沫对海气热通量的影响。结果表明,在0～20m/s风速范围内,感热通量与潜热通量主要由海气温差和海气湿差决定,与波龄的相关性很小,飞沫对热通量无显著影响。当风速大于20m/s,感热通量和潜热通量与海气温差和海气湿差的相关性减小,与波龄的相关性增加,潜热通量与波龄呈现负相关。考虑飞沫的效应后,总热通量明显增加,飞沫所增加的感热通量平均可占界面感热通量的38.89%,飞沫所增加的潜热通量平均占界面潜热通量的39.19%。
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| 关 键 词： | COARE模型 飞沫 动力粗糙度长度 热通量 南海 |
Improvement to the Air-Sea Heat Flux Algorithm and Its Application |
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| ZHANG Lian-Xin,GUAN Chang-Long,HUANG Jian.Improvement to the Air-Sea Heat Flux Algorithm and Its Application[J].Periodical of Ocean University of China,2011,41(12):8-16. |
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| Authors: | ZHANG Lian-Xin GUAN Chang-Long HUANG Jian |
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| Institution: | ZHANG Lian-Xin1,GUAN Chang-Long1,HUANG Jian2(1.The Laboratory of Physical Oceanography,Ocean University of China,Qingdao 266100,China,2.Guangzhou Institute of Tropical Marine Meteorology,China Meteorological Administration,Guangzhou 510080,China) |
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| Abstract: | The COARE model is the commonly used algorithm in the world for air-sea heat flux,which is believed to be applicable to wind speed up to 20 m/s.It is probably unreasonable to apply this model directly to the condition with wind speeds higher than 20 m/s,because of the absence of the impact of sea spray in the model,which always appear at sea surface under high wind speed.In the present paper,a parameterization of sea surface aerodynamic roughness has been proposed,which is applicable to various wind speeds ... |
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| Keywords: | COARE model sea spray sea surface aerodynamic roughness air-sea heat flux South China Sea |
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